THE SUN IS A KNOWN QUIESCENT GAMMA-RAY SOURCE. ITS QUIESCENT GAMMA-RAY EMISSION IS PRODUCED BY GALACTIC COSMIC RAYS (CRS) INTERACTING WITH ITS SURFACE (DISK COMPONENT) AND WITH ITS PHOTON FIELD (SPATIALLY EXTENDED INVERSE-COMPTON COMPONENT).
$79,946FY2020National Aeronautics and Space AdministrationNASA
The Leland Stanford Junior University